Shuttle.



j. EL SHAVBOW.

SHUTTLE.`

/wPLlcAnoN man ocr. 16. 191e.

Patented Feb.. 26,191@` nvenov. IJohn @.Shumbow Ams.

renie.

l SHUTTLE.

Specification of Letters Patent.

Patented Feb. 26, 19113.

` Application led October 1G, 1916. Serial No. 125,765.

To all whom t may concern Be it known that I, JOI-IN C. Si-IAMBOW, a citizen of the United States, residing at Woonsocket, county of Providence, State of Rhode Island, have invented an Improvement in Shuttles, of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to an improvement in shuttles generally and is directed toa novel means for retaining a cop-tube, bobbln or similar filling carrier upon the l usual blade or spindle which is pivotally mounted in the shuttle body to be swung into or out of operative position. More specifically this invent-ion relates to an improvement in that class of shuttles in which there is a springactuated catch automatically operable upon movement of the spindle to lock the filling carrier on the spindle and to unlock the same therefrom.

The object of this invention is to improve upon the construction of shuttles having means for securing the filling carrier on the shuttle spindle.

Other objects of the invention will more fully appear from the following description and accompanying drawings and will be pointed out in the annexed claims.

In the accompanying drawings, there has been disclosed a structure designed to carry out the objects of the invention, but it is to he understood that theinvention is not confined tc the exact features shown, as various changes may be made within its reasonable scope. i

In the drawings:

Figure 1 is a longitudinal section through the shuttle body showing the spindle in operative position;

Fig. 2 is a similar section showing the spindle in inoperative or elevated position;

Fig. 3 is a section on the line 3-3 of Fig. l;

Fig. 4 is a section on the line 4-4 of i Fig. 2.

In this selected embodiment of this novel locking device here Shown, the spindle 1 has a head 2 pivotally mounted on the pin 3 in the shuttle body 4 and is therefore movable into and outl of the normal operative position shown in Fig. 1. The shoulder 5 of the head 2 bears against the head-6 of a stud yieldably carried bythe coiledspring 7 in a suitable recess in the shuttle body. While such spring means are shown, any of the types commonly employed to accomplish the retention of the spindle in either operative vlowered position or inoperative elevated position may be employed. The filling carrier here disclosed consists of a cop 8 of the usual tubular type adapted to be axially carried on the spindle.

In this improved shuttle there is provided a novel device consisting of a clamping means on opposed sides of thespindle, normally to clamp the cop 8 on the spindle and prevent movement of the cop while the spindlel is in lowered or operative position. Desirably such clamping means is carried by a supporting instrumentality movably` mounted so that the clamping means may be coperatively moved relatively to the spindle to effect the release of the cop when the spindle` is raised to inoperative position.

In this preferred embodiment such clamping means comprises a pair of opposed jaws 9, one being disposed on each side of the spindle 1. These jaws 9 are preferably formed integrally with a supporting instrumentality such as a shank or base 10 having a tail 11 which has a sliding and guid- .ing bearing ron the boss 12 of the spindle head 2. This base 10 is substantially rigid and has securely fastened thereto a stud 13 which is mounted to reciprocate in an aperture formed in the spindle head 2. The stud 13 terminates, at its end opposite to the base, in a head 14 and a helical spring 15 is positioned on the stud, one end bearing against the stud head 14 while the other end is seated in an enlarged portion of the aperture in the spindle head in which the stud 13 reciprocates. VSuch stud head actuation is well-known inthis art and need not be more specifically illustrated. l/Vhen the spindle 1 is raised from the operative position disclosed in Fig. 1 to the inoperative position of Fig. 2, the head 14 of the base stud 13 contacts with a member, such as a metallic staple 16 secured to the shuttle body, and effects a camming function therewith whereby the stud is depressed within the spindle against the tension of the spring 15 tending to retain the stud in normal elevated position. This depression of the stud 13 relatively `to the spindle head 2 results in the similar movement of the base 10 with relation to the head and therefore of the op- PoSod Clamping im? 9, with relation 'o0 tho spindle il. Such relative position ofthe jaws and spindle, when the spindle is in inoperative position,V- is shown in Fig. 4. In such position the cop orfilling carrier may be readily placed upon the spindle in axial alinement therewith as is customary in this art. yThe return of therspindle 'to normal working position automatically releases the head 14 of the base stud 13 from any depressive contact with the staple 16. And,

ing jaws 9 .in substantially a U-shape atthe` forward end orv the base-forming shank. Each plate or jaw 9 has a flared tip 17 to adordy ease of fillingA carrier positioning and so that.y the jawsmay readily ride up the presented sidesot' such carrier upon the axially transverse movement` ofA the jaws with relation `t o the spindle. Preferably, further, each jaw hasy its,1 median vertical portion 18` Stamped inwardly toward the e spindle, as shown' in Figs. 3. andl 4. This alfords a greater constriction of the space oomprehended between the jawmembers and assurs a. Smooth traversefof the jaws over` the sides otthe illingcarrier into inal clampedposition. `Whenj the spindle is returned. to operative position, the filling carrier s'sooujrely damped aganstinormnent on the spindle. As the spindle is manually downwardly pushed from the `inoperative position of Fig.l 1, the tensioned spring 7 causes the spindleto pivot toward operative position. As the spring` often'does not, turn the spindleh'completely into operative axial aline- -ment with the shuttle body, itis necessary moouallrto posh it down and moans oro Pro.-

vided yin this embodiment to assure the'assumption of. operativey axial alinement of `the spindle upon such manipulation. To this end, va stop, such as a pinnlf, is posiionedy transversely the usual opening in the vshuttle bottom. The underface of the beso 10 of tho oor-gripping Lions carried by; the Spindle ebuts.; against. the pin 19 and, notv onlyr thereby assures theproper spindle positioning, but alsol functions, to

, preventlrelease.A due to accidental depression ofthe stud .head 14; asthefba'se 10 is held against downward movement! 'This novelI device achievesthe secure retention ofmthe filling carrier on the shuttle Spindle. under ,Working conditions and yet assures the faeile, `antomatic release of the filling carrier when the spindle is raised. This structure here disclosed is simple, certain in operation, inexpensively and easily produced and is durable and el'licient.

It is to be understood that the construction'disclosed herein is illustrative but not restrictive and that the same may be modilied within the meaning and scope oi the claims which follow.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is;

1. In a shuttle, the combination of a spindle pivotally mounted in the shuttle body and adaptedk axially to receive, a filling` earrier, clamping means on opposed sides ofl the'spindle yieldably to clamp a filling earrier thereon when the spindle is in operative position, and means for movably mounting said clampingmeans so that the carrier may be automatically released on` raisingr of\the spindle to inoperative` position.

2. In a shuttle, the combination of ak spindle pivotally mounted in the shuttle body and adapted axially to receive a llingearrier, cooperative clamping means` on opposed sides of. thespindle yieldably to clamp a filling carrier thereon when the spindle is in operative position, a rigid shank member yieldably mounted to reciprocate in the spindle and carrying said clamping means whereby the filling carrier may beautomatically released on raising of the spindlel to inoperati ve position.

In a. shuttle, the combination of a spindle pivotally mounted in the shuttle body and adapted axially to receive a filling carrier, members on opposed sides of the spindle to clamp said filling carrier thereon when the spindle is in operative position, means to lock said opposed clamping members against. movement when the spindle is in said position, and meansH movably to mount the said clamping members on the pivoted spindle so as to have movement relative thereto whereby, upon movement oi the spindle to inoperative position, the lilling carrier is released by the opposed clamping members.

Ll. In a shuttle, the combination of a spindle pivotally mounted in the shuttle body and adapted axiallyto receive a filling earrier, members onopposed sides of the spindle to clamp said filling carrier thereto when the spindle is in operative position, means to look said clamping members when the spindle is in said position, a supportinginstrumentality forI said opposed clamping members, means for movably mounting said instrumentality whereby, upon raising of the spindle toinoperative position, the opposed :clamping means are automatically unlocked `and the 'clamping members are automatically moved relatively to thel spindle and the filling carrier` released.

5. In a shuttle, the combination of a spindle having its head pivotally mounted in the shuttle body and adapted axially to receive a filling carrier; a rigid shank member yieldably mounted to reciprocate in said head; a pair of plate members on said shank extending transversely to the spindle axis, one on each side thereof; and means on the plate faces adjacent the spindle to engage and clamp said illing carrier upon movement of said shank member.

6. ln a shuttle, the combination of a spindle having its head pivotally mounted in the shuttle body and adapted axially to receive a filling carrier; a rigid shank member yieldably mounted to reciprocate in said head; and a pair of plate members provided on said shank extending transversely to the spindle axis, one on each side thereof, each of said plate members having an inwardly projecting median portion aording opposed gripping surfaces of an area sufficient irmly to grip the filling carrier.

In testimony whereof, I have signed my name to this specification.

JOHN C. SHAMBOW.

Copies o: this rpatent may be obtained for ve cents eachl by addressing the Commissioner of Eatents, Washington, D. C. 

